Question

30 mL of CO was exploded with V mL of oxygen and 35 mL of gases remained. What is the value of V ?
(A) 5 (B) 50 (C) 20 (D) 30

Answer 1

Explanation:

Given reaction:

2CO + O2 --->2CO2

2moles of CO + 1mole of O2 ----> 2moles of CO2

Moles of CO/Moles of O2  =2/1=2 -----------(1)

20 ml of CO  reacts with 10 ml of O2 to produce 20 ml of CO2

But 20 ml of O2 remains unreacted.It is limiting realVolume of Final mixture=20ml of CO2+20ml of O2 

                                         =40ml 

The final volume of the gases is 40ml

please follow me

sorry if my answer is worng

Answer 2

The correct answer is option (B) 50 ml

GIVEN

Volume of CO = 30ml

Volume of Oxygen gas = V ml

Volume of gas remained= 35 ml

TO FIND

The value of V

SOLUTION

We can simply solve the above equation as follows -

The reaction of carbon monoxide and oxygen can be depicted as follows -

2CO + O₂ ---------> 2CO₂

So,

At constant temperature and pressure, volume × number of moles

Therefore,

2 ml of CO requires 1 ml of O₂

Here, CO is the limiting reagent

So, 30ml of CO = (1/2)×30 = 15 ml of O₂

It is given,

Volume of gas remained = 35 ml

So,

the initial volume of Oxygen gas =

V -15 = 35

V = 50 ml

Hence, The initial volume of oxygen is 50 ml

#Spj2

For more such questions

https://brainly.in/question/33583639?utm_source=android&utm_medium=share&utm_campaign=question

https://brainly.in/question/44794350?utm_source=android&utm_medium=share&utm_campaign=question